Poetry is extremely slow when resolving the dependencies

[qiuwei]

• I am on the latest Poetry version.
• I have searched the issues of this repo and believe that this is not a duplicate.
• If an exception occurs when executing a command, I executed it again in debug mode (-vvv option).

• OS version and name: Centos 7
• Poetry version: 1.0.0
• Link of a Gist with the contents of your pyproject.toml file: https://gist.github.com/qiuwei/a0c7eee89e5e8d75edb477858213c30b

Issue

I created an empty project and run poetry add allennlp. It takes ages to resolve the dependencies.

[David-OConnor]

Could this be due to downloading packages from pypi to inspect their dependencies, when not properly specified?

[qiuwei]

Could this be due to downloading packages from pypi to inspect their dependencies, when not properly specified?

It seems so. I have checked the detailed log, poetry kept retrying to resolve the dependency for botocore, but without success. So I assume that the dependency can be eventually resolved if enough time is given.

However, is there any way to get around this?

BTW, I also consider it's better to give some warning if there are some dependencies are not properly specified and could not be resolved after a number of attempts.

[thmsklngr]

Hi,

I encounter a similiar problem on my MacOS. Python version used is 3.7.6, Poetry is 1.0.5. I just created a new project with no dependencies so far in pyproject.toml, just initially pytest. It takes ages until the new virtualenv is setup with all 11 packages installed.

Running it with -vvv does not bring any new findings.

Regards, Thomas

[yalunren]

Yes, i'm running into the same problem. Resolving dependencies takes forever. I tried to use VPN to get through the GFW, nevertheless, it is still not working. I also tried to change pip source and wrote local source in the toml file, neither works. It's driving me nuts.

[long2ice]

same here...😱

[luanfrv9]

Same here. I just created an empty project then ran poetry install and it takes so much time to resolve dependencies.

[luanfrv9]

I'm currently using this workaround:

poetry export -f requirements.txt > requirements.txt
python -m pip install -r requirements.txt
poetry install

It takes a lower time space to install the package locally since all deps are already installed.

Make sure to run poetry shell before to access the created virtual environment and install on it instead of on user/global path.

[MartinThoma]

Poetry being slow to resolve dependencies seems to be a reoccuring issue:

• Poetry resolving dependencies is amazingly slow #476 - Poetry resolving dependencies is amazingly slow
• Resolving dependencies are slow #819 - Resolving dependencies are slow
• Poetry update never finishes resolve and Poetry show --outdated hangs #832 - Poetry update never finishes resolve and Poetry show --outdated hangs
• Poetry doesn't resolve on MacOs Mojave #1047 - Poetry doesn't resolve on MacOs Mojave

[aoreki]

Maybe there is a dependency conflict.

[gagarine]

No conflict. Poetry is slow as hell.